The new pentacyclic triterpene, 11alpha-methoxy-beta-amyrin (1), was isolated from Myroxylon balsamum (L.) Harms (syn. Myroxylon peruiferum L.f.). Its structure was established on the basis of IR, MS, ¹H NMR, 13C NMR. 2D NMR experiments were also used to establish the structure and the hydrogen and carbon chemical shift assignments of the new triterpene.Um novo triterpeno pentacíclico, o 11alfa-metoxi-beta-amirina (1) foi isolado de Myroxylon balsamum (L.) Harms (sin. Myroxylon peruiferum L.f.). A estrutura desta substância foi elucidada pela análise de seus dados de IV, EM, RMN ¹H e 13C. RMN bidimensional foi também utilizada para definir a estrutura e atribuir os deslocamentos químicos dos átomos de hidrogênio e carbono do novo triterpeno
Two new transformed sesquiterpenes of alantolactone by Mucor polymorphosporus were obtained. They we...
Eleven oleanane, ursane and lupane-type triterpenes were isolated from the leaves of Terminalia bras...
Two pentacyclic terpenoids, α-amyrin and β-amyrin were isolated from the petroleum spirit...
The new nor-lupane triterpene, isolated from the leaves of Eugenia florida DC (Myrtaceae) was identi...
Six pentacyclic triterpenoids, 3b-stearyloxy-urs-12-ene (1), friedelin (2), 3b-friedelinol (3), a-am...
A novel triterpene, characterized as 6alpha-hydroxybetulinic acid, was isolated from the leaves and ...
Terpenoids are the most essential compounds biosynthesized by plants as secondary metabolites. It is...
Chemical investigation of the dichloromethane extract of Tabernaemontana pandacaqui Poir. flowers ha...
The structural study of two (C30H48O2) pentacyclic triterpene (PCTT) isomers is presented. These ter...
Two new and two known cneorubin related diterpenes were isolated from the leaves of Guarea guidonia ...
A new diterpenoid, 12beta,13alpha-dihydroxytriptonide, was obtained from the transformed culture of ...
A pentacyclic triterpene, 3β,30-dihydroxy-lup-20(29)-ene, was isolated from the powder extract of Ma...
Three novel pentacyclic triterpenes have been isolated from the resin of Protium kleinii and their s...
Semiaquilegoside A (1), a new diterpenoid, was isolated from the roots of Semiaquilegia adoxoides. I...
The phytochemical studies of Eschweilera longipes Miers (Lecythidaceae) have led to the identificati...
Two new transformed sesquiterpenes of alantolactone by Mucor polymorphosporus were obtained. They we...
Eleven oleanane, ursane and lupane-type triterpenes were isolated from the leaves of Terminalia bras...
Two pentacyclic terpenoids, α-amyrin and β-amyrin were isolated from the petroleum spirit...
The new nor-lupane triterpene, isolated from the leaves of Eugenia florida DC (Myrtaceae) was identi...
Six pentacyclic triterpenoids, 3b-stearyloxy-urs-12-ene (1), friedelin (2), 3b-friedelinol (3), a-am...
A novel triterpene, characterized as 6alpha-hydroxybetulinic acid, was isolated from the leaves and ...
Terpenoids are the most essential compounds biosynthesized by plants as secondary metabolites. It is...
Chemical investigation of the dichloromethane extract of Tabernaemontana pandacaqui Poir. flowers ha...
The structural study of two (C30H48O2) pentacyclic triterpene (PCTT) isomers is presented. These ter...
Two new and two known cneorubin related diterpenes were isolated from the leaves of Guarea guidonia ...
A new diterpenoid, 12beta,13alpha-dihydroxytriptonide, was obtained from the transformed culture of ...
A pentacyclic triterpene, 3β,30-dihydroxy-lup-20(29)-ene, was isolated from the powder extract of Ma...
Three novel pentacyclic triterpenes have been isolated from the resin of Protium kleinii and their s...
Semiaquilegoside A (1), a new diterpenoid, was isolated from the roots of Semiaquilegia adoxoides. I...
The phytochemical studies of Eschweilera longipes Miers (Lecythidaceae) have led to the identificati...
Two new transformed sesquiterpenes of alantolactone by Mucor polymorphosporus were obtained. They we...
Eleven oleanane, ursane and lupane-type triterpenes were isolated from the leaves of Terminalia bras...
Two pentacyclic terpenoids, α-amyrin and β-amyrin were isolated from the petroleum spirit...